Jar opener



FIG. 1 is a bottom plan view of a jar opener, showing my new design;

FIG. 2 is a front elevational view the opposite not shown being a mirror image thereof; _

FIG. 3 is a left end view thereof;

FIG. 4 is a right end view thereof; and

FIG. 5 is a top plan view thereof. 

The ornamental design for a jar opener, substantially as shown. 